package com.hujf.flink.select;

import org.apache.flink.api.java.functions.KeySelector;

/**
 * @Author hujf
 * @Date 2022/3/24 14:58
 * @Description TODO
 */
public class less2 implements KeySelector {


    @Override
    public Integer getKey(Object o) throws Exception {
        return null;
    }
}
